UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant To Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 27, 2004 (Date of earliest event reported) Indymac MBS Inc (as Depositor under the Pooling and Servicing Agreement, dated as June 1, 2004, providing for the issuance of IndyMac MBS, Inc. Home Equity Mortgage Loan Asset-Backed Trust Series SPMD 2004-A Home Equity Mortgage Loan Asset- Backed Certificates SPMD 2004-A (Exact name of registrant as specified in charter) DELAWARE (State or Other Jurisdiction of Incorporation) 333-47158-07 95-4685267 (Commission File Number) (I.R.S. Employer Identification No.) 155 NORTH LAKE AVENUE PASADENA, CALIFORNIA 91101 (Address of principal executive offices) (Zip Code) Registrant's Telephone Number, Including Area Code: (800) 669-2300 (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12(b) under the Exchange Act (17 CFR 240.14a-12(b)) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Item 8.01 Other Events Attached hereto is a copy of the Monthly Remittance Statements to the Certificateholders which was derived from the monthly information submitted by the Master Servicer of the Trust to the Trustee. Item 9.01 Financial Statements and Exhibits (c) Exhibits: Exhibit No. Description 99.1 Monthly Remittance Statement to the Certificateholders dated as of December 27, 2004. Signatures Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. Deutsche Bank National Trust Company, in its capacity as Trustee under the Pooling and Servicing Agreement on behalf of Indymac MBS Inc, Registrant Date: ~~Sep~~Dec 2728, 2004 By: /s/ Katherine M. Wannenmacher Katherine M. Wannenmacher Vice President EXHIBIT INDEX DOCUMENT 99.1 Monthly Remittance Statement to the Certificateholders dated as of December 27, 2004.

IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
				External Parties						Table of Contents
													Page
				Seller
										1. Certificate Payment Report					2
				IndyMac Bank
										2. Collection Account Report					4
										3. Credit Enhancement Report					6
										4. Collateral Report					7
				Certificate Insurer(s)						5. Delinquency Report					10
										6. REO Report					13
										7. Foreclosure Report					14
										8. Prepayment Report					15
										9. Prepayment Detail Report					18
										10. Realized Loss Report					20
										11. Realized Loss Detail Report					23
				Servicer(s)
										12. Triggers and Adj. Cert. Report					24
				IndyMac Bank
										13. Additional Certificate Report					25
										14. Other Related Information					26
				Underwriter(s)
				UBS Securities
										Total Number of Pages					26
				Dates						Contacts
				Cut-Off Date:			June 01, 2004			Brent Hoyler
				Close Date:			June 08, 2004			Administrator
				First Distribution Date:			July 26, 2004			(714) 247-6322
										Brent.Hoyler@db.com
										Address:
										1761 East St. Andrew Place, Santa Ana, CA 92705
				Distribution Date:			~~September~~December 27, 2004
										Factor Information:			(800) 735-7777
				Record Date:			~~August~~November 3130, 2004
										Main Phone Number:			(714) 247-6000
							September 24, 2004
							December 24, 2004
										https://www.corporatetrust.db.com/invr
										https://www.tss.db.com/invr
Page 1 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Certificate Payment Report
Current Period Distribution - REMIC III
					Prior												Current
	Class		Original		Principal						Total		Realized		Deferred		Principal
Class	Type	Cur	Face Value		Balance		Interest		Principal		Distribution		Loss		Interest		Balance
					(1)		(2)		(3)		(4)=(2)+(3)		(5)		(6)		(7)=(1)-(3)-(5)+(6)
A-1	FLT, STEP	$	267,868,000.00		~~257~~234,~~424~~415,~~739~~200.3108		~~451~~500,~~887~~733.6885		79,~~209~~716,~~712~~307.8779		710,~~661~~217,~~600~~041.5564		0.00		0.00		~~250~~224,~~215~~698,~~026~~892.4429
A-2	FLT, STEP	$	52,102,000.00		4539,~~266~~918,~~182~~146.72		7380,~~651~~456.8572		12,~~245~~510,~~824~~555.1815		12,~~319~~591,~~476~~011.0387		0.00		0.00		4437,~~020~~407,~~358~~591.5457
A-3	FLT, STEP	$	37,780,000.00		37,780,000.00		7286,~~553~~557.3468		0.00		7286,~~553~~557.3468		0.00		0.00		37,780,000.00
M-1	MEZ, FLT	$	28,125,000.00		28,125,000.00		5767,~~621~~827.0976		0.00		5767,~~621~~827.0976		0.00		0.00		28,125,000.00
M-2	MEZ, FLT	$	22,050,000.00		22,050,000.00		5967,~~930~~037.0684		0.00		5967,~~930~~037.0684		0.00		0.00		22,050,000.00
M-3	MEZ, FLT	$	5,625,000.00		5,625,000.00		1618,~~319~~070.5324		0.00		1618,~~319~~070.5324		0.00		0.00		5,625,000.00
M-4	MEZ, FLT	$	11,700,000.00		11,700,000.00		4447,~~133~~157.3835		0.00		4447,~~133~~157.3835		0.00		0.00		11,700,000.00
M-5	MEZ, FLT	$	4,950,000.00		4,950,000.00		2324,~~209~~213.3169		0.00		2324,~~209~~213.3169		0.00		0.00		4,950,000.00
M-6	MEZ, FLT	$	4,500,000.00		4,500,000.00		2122,~~099~~012.3844		0.00		2122,~~099~~012.3844		0.00		0.00		4,500,000.00
M-7	MEZ, FIX	$	8,550,000.00		8,550,000.00		42,750.00		0.00		42,750.00		0.00		0.00		8,550,000.00
C	SUB,EXE	$	6,769,181.65		6,750,287.73		1,~~544~~286,~~408~~471.9372		0.00		1,~~544~~286,~~408~~471.9372		0.00		0.00		6,750,287.73
P	SUB	$	100.00		100.00		90163,~~646~~531.6241		0.00		90163,~~646~~531.6241		0.00		0.00		100.00
R	R	$	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00
Total			450,019,281.65		~~432~~404,~~721~~363,~~309~~734.7653		2,~~498~~406,~~211~~820.1770		812,~~455~~226,~~537~~862.0594		1014,~~953~~633,~~748~~683.2264		0.00		0.00		~~424~~392,~~265~~136,~~772~~871.7159
Interest Accrual Detail Current Period Factor Information per $1,0000 of Original Face-
Interest Accrual Detail Current Period Factor Information per $1,000 of Original Face-
									Orig. Principal		Prior							Current
	Period		Period						(with Notional)		Principal						Total	Principal
Class	Starting		Ending		Method		Cusip		Balance		Balance		Interest		Principal		Distribution	Balance
									(1)		(1)		(2)		(3)		(4)=(2)+(3)	(5)
A-1	0811/2526/04		0912/26/04		A-Act/360		456606EN8		267,868,000.00		~~961~~875.~~013407~~114609		1.~~686979~~869331		2636.~~915170~~272745		2838.~~602149~~142076	~~934~~838.~~098237~~841863
A-2	0811/2526/04		0912/26/04		A-Act/360		456606EP3		52,102,000.00		~~868~~766.~~799331~~153827		1.~~413609~~544216		2348.~~911254~~185389		2549.~~324863~~729605	~~844~~717.~~888076~~968438
A-3	0811/2526/04		0912/26/04		A-Act/360		456606EX6		37,780,000.00		1,000.000000		12.~~920417~~291098		0.000000		12.~~920417~~291098	1,000.000000
M-1	0811/2526/04		0912/26/04		A-Act/360		456606EQ1		28,125,000.00		1,000.000000		2.~~048750~~411654		0.000000		2.~~048750~~411654	1,000.000000
M-2	0811/2526/04		0912/26/04		A-Act/360		456606ER9		22,050,000.00		1,000.000000		23.~~717917~~040265		0.000000		23.~~717917~~040265	1,000.000000
M-3	0811/2526/04		0912/26/04		A-Act/360		456606ES7		5,625,000.00		1,000.000000		23.~~901250~~212487		0.000000		23.~~901250~~212487	1,000.000000
M-4	0811/2526/04		0912/26/04		A-Act/360		456606ET5		11,700,000.00		1,000.000000		34.~~772084~~030543		0.000000		34.~~772084~~030543	1,000.000000
M-5	0811/2526/04		0912/26/04		A-Act/360		456606EU2		4,950,000.00		1,000.000000		4.~~688749~~891655		0.000000		4.~~688749~~891655	1,000.000000
M-6	0811/2526/04		0912/26/04		A-Act/360		456606EV0		4,500,000.00		1,000.000000		4.~~688751~~891653		0.000000		4.~~688751~~891653	1,000.000000
M-7	0811/25/04		0912/24/04		F-30/360		456606EW8		8,550,000.00		1,000.000000		5.000000		0.000000		5.000000	1,000.000000
C	0811/25/04		0912/24/04		F-30/360		IN04S101C		6,769,181.65		997.208832		~~228~~190.~~152975~~048338		0.000000		~~228~~190.~~152975~~048338	997.208832
P	0811/25/04		0912/24/04		F-30/360		IN04S101P		100.00		1,000.000000		~~906~~1,~~466~~635,314.~~200000~~100000		0.000000		~~906~~1,~~466~~635,314.~~200000~~100000	1,000.000000
R	0811/25/04		0912/24/04		F-30/360		IN04S101R		0.00		0.000000		0.000000		0.000000		0.000000	0.000000
Page 2 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Distribution to Date - REMIC III
																	Current
	Original				Unscheduled		Scheduled		Total		Total		Realized		Deferred		Principal
Class	Face Value		Interest		Principal		Principal		Principal		Distribution		Loss		Interest		Balance
	(1)		(2)		(3)		(4)		(5)=(3)+(4)		(6)=(2)+(5)		(7)		(8)		(9)=(1)-(5)-(7)+(8)
A-1	267,868,000.00		12,~~357~~755,~~304~~603.0822		1641,~~941~~669,~~982~~617.7435		~~710~~1,~~990~~499,490.8236		1743,~~652~~169,~~973~~107.5671		1945,~~010~~924,~~277~~710.6493		0.00		0.00		~~250~~224,~~215~~698,~~026~~892.4429
A-2	52,102,000.00		~~229~~454,~~382~~765.9997		714,~~759~~172,~~791~~296.9337		~~321~~522,~~849~~112.5306		814,~~081~~694,~~641~~408.4643		815,~~311~~149,~~024~~174.4540		0.00		0.00		4437,~~020~~407,~~358~~591.5457
A-3	37,780,000.00		~~215~~451,~~928~~675.4414		0.00		0.00		0.00		~~215~~451,~~928~~675.4414		0.00		0.00		37,780,000.00
M-1	28,125,000.00		~~172~~358,~~886~~339.7248		0.00		0.00		0.00		~~172~~358,~~886~~339.7248		0.00		0.00		28,125,000.00
M-2	22,050,000.00		~~185~~371,~~174~~257.0640		0.00		0.00		0.00		~~185~~371,~~174~~257.0640		0.00		0.00		22,050,000.00
M-3	5,625,000.00		50101,~~707~~021.0302		0.00		0.00		0.00		50101,~~707~~021.0302		0.00		0.00		5,625,000.00
M-4	11,700,000.00		~~139~~272,~~741~~491.8823		0.00		0.00		0.00		~~139~~272,~~741~~491.8823		0.00		0.00		11,700,000.00
M-5	4,950,000.00		74143,~~384~~059.0675		0.00		0.00		0.00		74143,~~384~~059.0675		0.00		0.00		4,950,000.00
M-6	4,500,000.00		67130,~~621~~054.8832		0.00		0.00		0.00		67130,~~621~~054.8832		0.00		0.00		4,500,000.00
M-7	8,550,000.00		~~128~~256,~~250~~500.00		0.00		0.00		0.00		~~128~~256,~~250~~500.00		0.00		0.00		8,550,000.00
C	6,769,181.65		48,~~741~~961,~~749~~963.4012		18,160.52		733.40		18,893.92		48,~~760~~980,~~643~~857.3204		0.00		0.00		6,750,287.73
P	100.00		~~245~~659,~~491~~812.7992		0.00		0.00		0.00		~~245~~659,~~491~~812.7992		0.00		0.00		100.00
R	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00
Total	450,019,281.65		714,~~608~~916,~~622~~543.3357		2455,~~719~~860,~~935~~074.1924		12,~~033~~022,~~573~~335.7582		2557,~~753~~882,~~508~~410.9406		3372,~~362~~798,~~131~~953.2763		0.00		0.00		~~424~~392,~~265~~136,~~772~~871.7159
Interest Detail - REMIC III
	Pass		Prior Principal				Non-		Prior		Unscheduled				Paid or		Current
	Through		(with Notional)		Accrued		Supported		Unpaid		Interest		Optimal		Deferred		Unpaid
Class	Rate		Balance		Interest		Interest SF		Interest		Adjustment		Interest		Interest		Interest
					(1)		(2)		(3)		(4)		(5)=(1)-(2)+(3)+(4)		(6)		(7)=(5)-(6)
A-1	12.~~91500~~48063%		~~257~~234,~~424~~415,~~739~~200.3108		~~451~~500,~~887~~733.6885		0.00		0.00		0.00		~~451~~500,~~887~~733.6885		~~451~~500,~~887~~733.6885		0.00
A-2	12.~~77500~~34063%		4539,~~266~~918,~~182~~146.72		7380,~~651~~456.8572		0.00		0.00		0.00		7380,~~651~~456.8572		7380,~~651~~456.8572		0.00
A-3	2.~~09500~~66063%		37,780,000.00		7286,~~553~~557.3468		0.00		0.00		0.00		7286,~~553~~557.3468		7286,~~553~~557.3468		0.00
M-1	2.~~23500~~80063%		28,125,000.00		5767,~~621~~827.0976		0.00		0.00		0.00		5767,~~621~~827.0976		5767,~~621~~827.0976		0.00
M-2	23.~~96500~~53063%		22,050,000.00		5967,~~930~~037.0684		0.00		0.00		0.00		5967,~~930~~037.0684		5967,~~930~~037.0684		0.00
M-3	3.~~16500~~73063%		5,625,000.00		1618,~~319~~070.5324		0.00		0.00		0.00		1618,~~319~~070.5324		1618,~~319~~070.5324		0.00
M-4	4.~~11500~~68063%		11,700,000.00		4447,~~133~~157.3835		0.00		0.00		0.00		4447,~~133~~157.3835		4447,~~133~~157.3835		0.00
M-5	5.~~11500~~68063%		4,950,000.00		2324,~~209~~213.3169		0.00		0.00		0.00		2324,~~209~~213.3169		2324,~~209~~213.3169		0.00
M-6	5.~~11500~~68063%		4,500,000.00		2122,~~099~~012.3844		0.00		0.00		0.00		2122,~~099~~012.3844		2122,~~099~~012.3844		0.00
M-7	6.00000%		8,550,000.00		42,750.00		0.00		0.00		0.00		42,750.00		42,750.00		0.00
C	~~274~~228.~~54988~~69633%		6,750,287.73		~~128~~107,~~700~~205.7498		0.00		0.00		0.00		~~128~~107,~~700~~205.7498		1,~~544~~286,~~408~~471.9372		0.00
P	0.00000%		100.00		0.00		0.00		0.00		0.00		0.00		90163,~~646~~531.6241		0.00
R	0.00000%		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00
Total			~~432~~404,~~721~~363,~~309~~734.7653		~~991~~1,~~856~~064,023.3655		0.00		0.00		0.00		~~991~~1,~~856~~064,023.3655		2,~~498~~406,~~211~~820.1770		0.00
Page 3 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Collection Account Report
SUMMARY
										Group 2		Group 1		Total
Principal Collections										12,~~245~~510,~~824~~555.1815		79,~~209~~716,~~712~~307.8779		812,~~455~~226,~~537~~862.0594
Principal Withrawals										0.00		0.00		0.00
Principal Other Accounts										0.00		0.00		0.00
TOTAL NET PRINCIPAL										12,~~245~~510,~~824~~555.1815		79,~~209~~716,~~712~~307.8779		812,~~455~~226,~~537~~862.0594
Interest Collections										~~587~~555,~~463~~942.6106		1,~~844~~706,~~446~~674.7619		2,~~431~~262,~~910~~616.3725
Interest Withdrawals										-0.00		-0.00		-0.00
Interest Other Accounts										0.00		0.00		90163,~~646~~531.6241
Interest Fees										-5,~~752~~016.6486		-1814,~~593~~310.1810		-2419,~~345~~326.8296
TOTAL NET INTEREST										~~581~~550,~~710~~925.9720		1,~~825~~692,~~853~~364.5809		2,~~498~~406,~~211~~820.1770
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION										13,~~827~~061,~~535~~480.1535		911,~~035~~408,~~566~~671.4588		1014,~~953~~633,~~748~~683.2264
PRINCIPAL - COLLECTIONS
											Group 2		Group 1		Total
Scheduled Principal Received											7673,~~048~~376.3515		~~264~~250,~~790~~212.7813		~~340~~323,~~839~~588.1328
Prepayments In Full											12,~~165~~435,~~921~~445.8162		69,~~931~~034,~~196~~897.5517		811,~~097~~470,~~118~~342.3679
Curtailments											31,~~854~~733.0238		138,~~725~~265.5416		179,~~579~~998.5654
Liquidations											0.00		0.00		0.00
Insurance Principal											0.00		0.00		0.00
Repurchased Principal Amounts											0.00		0422,933.0033		0422,933.0033
Other Principal											0.00		0.00		0.00
Total Realized Loss Of Principal											-0.00		-0.00		-0.00
Delinquent Principal											-67,~~041~~216.2923		-~~237~~232,~~467~~160.2617		-~~304~~299,~~508~~376.5540
Advanced Principal											67,~~041~~216.2923		~~237~~232,~~467~~160.2617		~~304~~299,~~508~~376.5540
TOTAL PRINCIPAL COLLECTED											12,~~245~~510,~~824~~555.1815		79,~~209~~716,~~712~~307.8779		812,~~455~~226,~~537~~862.0594
PRINCIPAL - WITHDRAWALS
SPACE INTENTIONALLY LEFT BLANK
PRINCIPAL - OTHER ACCOUNTS
										Group 2		Group 1		Total
TOTAL OTHER ACCOUNTS PRINCIPAL										0.00		0.00		0.00
Page 4 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
INTEREST - COLLECTIONS
										Group 2		Group 1		Total
Scheduled Interest										~~626~~593,~~345~~299.0069		1,~~964~~818,~~044~~279.2660		2,~~590~~411,~~389~~579.2629
Liquidation Interest										0.00		0.00		0.00
Repurchased Interest										0.00		02,553.0064		02,553.0064
Insurance Interest										0.00		0.00		0.00
Other Interest										0.00		0.00		0.00
Relief Act Interest Shortfalls										-0.00		-0.00		-0.00
Prepayment Interest Shortfalls										-12,~~306~~295.3675		-47,~~538~~843.7264		-510,~~845~~139.0840
Compensating Interest										12,~~306~~295.3675		47,~~538~~843.7264		510,~~845~~139.0840
Delinquent Interest										-~~552~~530,~~512~~141.4199		-1,~~723~~643,~~175~~812.6239		-2,~~275~~173,~~688~~954.0338
Interest Advanced										~~513~~492,~~631~~784.0237		1,~~603~~529,~~578~~653.1234		2,~~117~~022,~~209~~437.1471
TOTAL INTEREST COLLECTED										~~587~~555,~~463~~942.6106		1,~~844~~706,~~446~~674.7619		2,~~431~~262,~~910~~616.3725
INTEREST - WITHDRAWALS
										Group 2		Group 1		Total
Nonrecoverable Advances										0.00		0.00		0.00
TOTAL INTEREST WITHDRAWALS										0.00		0.00		0.00
INTEREST - OTHER ACCOUNTS
										Group 2		Group 1		Total
Prepayment Charges														90163,~~646~~531.6241
TOTAL INTEREST OTHER ACCOUNTS										0.00		0.00		90163,~~646~~531.6241
INTEREST - FEES
										Group 2		Group 1		Total
Current Servicing Fees										54,~~136~~431.3981		1612,~~685~~536.2236		2116,~~821~~968.6117
Current Trustee Fees										~~616~~585.2505		1,~~907~~773.9674		2,~~524~~358.2179
TOTAL INTEREST OTHER FEES										5,~~752~~016.6486		1814,~~593~~310.1810		2419,~~345~~326.8296
Page 5 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Credit Enhancement Report
ACCOUNTS
Excess Reserve Fund Account
Initial Deposit						5,000.00
Begining Balance						5,000.00
Amount Withdrawn						0.00
Ending Balance						5,000.00
INSURANCE
SPACE INTENTIONALLY LEFT BLANK
STRUCTURAL FEATURES
										Group 2		Group 1		Total
Overcollateralized Amount														6,750,287.73
Overcollateralization Target Amount														6,750,287.73
Overcollateralization Release Amount														0.00
Overcollateralization Deficiency Amount														0.00
Page 6 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Collateral Report
COLLATERAL
											Group 2		Group 1		Total
Loan Count:
Original										415		2,270		2,685
Prior										~~397~~379		2,~~216~~092		2,~~613~~471
Prefunding										0		0		0
Scheduled Paid Offs										-0		-0		-0
Full Voluntary Prepayments										-57		-4151		-4658
Repurchases										-0		-02		-02
Liquidations										-0		-0		-0
Current										~~392~~372		2,~~175~~039		2,~~567~~411
Principal Balance:
Original										112,487,722.90		337,531,458.75		450,019,181.65
Prior										~~105~~100,~~642~~294,~~669~~633.68		~~327~~304,~~078~~069,~~540~~000.0885		~~432~~404,~~721~~363,~~209~~634.7653
Prefunding										0.00		0.00		0.00
Scheduled Principal										-7673,~~048~~376.3515		-~~264~~250,~~790~~212.7813		-~~340~~323,~~839~~588.1328
Partial Prepayments										#######		-138,~~725~~265.5416		-179,~~579~~998.5654
Full Voluntary Prepayments										-12,~~165~~435,~~921~~445.8162		-69,~~931~~034,~~196~~897.5517		-811,~~097~~470,~~118~~342.3679
Repurchases										-0.00		-0422,933.0033		-0422,933.0033
Liquidations										-0.00		-0.00		-0.00
Current										~~104~~97,~~396~~784,~~845~~078.5053		~~319~~294,~~868~~352,~~827~~693.2106		~~424~~392,~~265~~136,~~672~~771.7159
PREFUNDING
SPACE INTENTIONALLY LEFT BLANK
Page 7 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
CHARACTERISTICS
										Group 2		Group 1		Total
Weighted Average Coupon Original										7.09577%		7.21305%		7.18374%
Weighted Average Coupon Prior										7.~~09153~~10350%		7.~~20546~~18914%		7.~~17753~~16813%
Weighted Average Coupon Current										7.~~11468~~09868%		7.~~20577~~18587%		7.~~18353~~16424%
Weighted Average Months to Maturity Original										354		351		352
Weighted Average Months to Maturity Prior										~~353~~351		~~350~~346		~~351~~348
Weighted Average Months to Maturity Current										~~352~~350		~~349~~345		~~350~~346
Weighted Avg Remaining Amortization Term Original										354		351		352
Weighted Avg Remaining Amortization Term Prior										~~353~~351		~~350~~346		~~351~~348
Weighted Avg Remaining Amortization Term Current										~~352~~350		~~349~~345		~~350~~346
Weighted Average Seasoning Original										3.12		3.56		3.45
Weighted Average Seasoning Prior										47.1008		47.5350		47.4340
Weighted Average Seasoning Current										58.0908		58.5249		58.4239
Page 8 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
ARM CHARACTERISTICS
										Group 2		Group 1		Total
Weighted Average Margin Original										4.97647%		5.13259%		5.09297%
Weighted Average Margin Prior										5.~~00459~~02872%		5.~~12483~~12471%		5.~~09514~~10091%
Weighted Average Margin Current										5.~~01401~~02807%		5.~~12809~~13705%		5.~~10006~~10983%
Weighted Average Max Rate Original										13.01803%		13.16793%		13.12989%
Weighted Average Max Rate Prior										13.~~00887~~03375%		13.~~16142~~14799%		13.~~12375~~11967%
Weighted Average Max Rate Current										13.~~03797~~02712%		13.~~16256~~14825%		13.~~13194~~11799%
Weighted Average Min Rate Original										5.01474%		5.16428%		5.12633%
Weighted Average Min Rate Prior										5.~~04477~~08177%		5.~~15643~~15377%		5.~~12886~~13592%
Weighted Average Min Rate Current										5.~~05730~~08184%		5.~~15976~~16488%		5.~~13458~~14414%
Weighted Average Cap Up Original										1.04950%		1.03527%		1.03889%
Weighted Average Cap Up Prior										1.~~04539~~04735%		1.~~03569~~03766%		1.~~03809~~04006%
Weighted Average Cap Up Current										1.~~04553~~04799%		1.~~03638~~03653%		1.~~03863~~03939%
Weighted Average Cap Down Original										1.04950%		1.03527%		1.03889%
Weighted Average Cap Down Prior										1.~~04539~~04735%		1.~~03569~~03766%		1.~~03809~~04006%
Weighted Average Cap Down Current										1.~~04553~~04799%		1.~~03638~~03653%		1.~~03863~~03939%
SERVICING FEES & ADVANCES
											Group 2		Group 1		Total
Current Servicing Fees										54,~~136~~431.3981		1612,~~685~~536.2236		2116,~~821~~968.6117
Delinquent Servicing Fees										3837,~~881~~357.3962		~~119~~114,~~597~~159.5005		~~158~~151,~~478~~516.8968
TOTAL SERVICING FEES										4441,~~017~~789.7843		~~136~~126,~~282~~695.7342		~~180~~168,~~300~~484.5185
Compensating Interest										-12,~~306~~295.3675		-47,~~538~~843.7264		-510,~~845~~139.0840
Delinquent Servicing Fees										-3837,~~881~~357.3962		-~~119~~114,~~597~~159.5005		-~~158~~151,~~478~~516.8968
COLLECTED SERVICING FEES										117,~~937~~785.8449		-15,~~097~~388.6952		156,~~976~~828.5478
Aggregate Advances with respect to this Distribution										~~580~~560,~~672~~000.3160		1,~~841~~761,~~045~~813.3851		2,~~421~~321,~~717~~814.6911
ADDITIONAL COLLATERAL INFORMATION
										Group 2		Group 1		Total
Net Prepayment Interest Shortfall										0.00		0.00		0.00
Libor For Current Period														12.~~6150~~1806%
Total Net Monthly Excess Cashflow														1,~~544~~286,~~408~~471.9372
Page 9 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Delinquency Report
	TOTAL
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				614,~~255~~911,~~844~~899.0070		24,~~511~~485,~~888~~434.8640		05,388,420.0093		824,~~767~~785,~~732~~755.8603
			% Balance				13.4780%		01.5914%		01.0037%		26.0732%
			# Loans				4695		1934		029		65158
			% # Loans				13.7994%		01.7441%		01.0020%		26.5355%
	FORECLOSURE		Balance		0.00		0.00		0.00		01,845,606.0019		01,845,606.0019
			% Balance		0.00%		0.00%		0.00%		0.0047%		0.0047%
			# Loans		0		0		0		018		018
			% # Loans		0.00%		0.00%		0.00%		0.0075%		0.0075%
	BANKRUPTCY		Balance		~~137~~1,~~691~~071,767.6783		0.00		0.00		0.00		~~137~~1,~~691~~071,767.6783
			% Balance		0.0327%		0.00%		0.00%		0.00%		0.0327%
			# Loans		210		0		0		0		210
			% # Loans		0.0841%		0.00%		0.00%		0.00%		0.0841%
	REO		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	TOTAL		Balance		~~137~~1,~~691~~071,767.6783		614,~~255~~911,~~844~~899.0070		24,~~511~~485,~~888~~434.8640		07,234,027.0012		827,~~905~~703,~~424~~129.5305
			% Balance		0.0327%		13.4780%		01.5914%		01.0084%		27.1006%
			# Loans		210		4695		1934		047		67186
			% # Loans		0.0841%		13.7994%		01.7441%		01.0095%		27.6171%
Page 10 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
	GROUP 1
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				410,~~805~~784,~~174~~310.7429		23,~~322~~651,~~439~~278.0629		02,899,186.0030		717,~~127~~334,~~613~~774.8088
			% Balance				13.5066%		01.7324%		0.0098%		25.2389%
			# Loans				3978		1831		021		57130
			% # Loans				13.7983%		01.8352%		01.0003%		26.6238%
	FORECLOSURE		Balance		0.00		0.00		0.00		01,799,599.0079		01,799,599.0079
			% Balance		0.00%		0.00%		0.00%		0.0061%		0.0061%
			# Loans		0		0		0		017		017
			% # Loans		0.00%		0.00%		0.00%		0.0083%		0.0083%
	BANKRUPTCY		Balance		~~137~~1,~~691~~071,767.6783		0.00		0.00		0.00		~~137~~1,~~691~~071,767.6783
			% Balance		0.0436%		0.00%		0.00%		0.00%		0.0436%
			# Loans		210		0		0		0		210
			% # Loans		0.0949%		0.00%		0.00%		0.00%		0.0949%
	REO		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	TOTAL		Balance		~~137~~1,~~691~~071,767.6783		410,~~805~~784,~~174~~310.7429		23,~~322~~651,~~439~~278.0629		04,698,786.0009		720,~~265~~206,~~305~~142.4750
			% Balance		0.0436%		13.5066%		01.7324%		01.0060%		26.2786%
			# Loans		210		3978		1831		038		59157
			% # Loans		0.0949%		13.7983%		01.8352%		01.0086%		27.7170%
Page 11 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
	GROUP 2
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				14,~~450~~127,~~669~~589.2641		~~189~~834,~~449~~156.8011		02,489,234.0063		17,~~640~~450,~~119~~980.0615
			% Balance				14.3922%		0.1885%		02.0055%		17.5762%
			# Loans				717		13		08		828
			% # Loans				14.7957%		0.2681%		02.0015%		27.0453%
	FORECLOSURE		Balance		0.00		0.00		0.00		046,006.0040		046,006.0040
			% Balance		0.00%		0.00%		0.00%		0.0005%		0.0005%
			# Loans		0		0		0		01		01
			% # Loans		0.00%		0.00%		0.00%		0.0027%		0.0027%
	BANKRUPTCY		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	REO		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	TOTAL		Balance		0.00		14,~~450~~127,~~669~~589.2641		~~189~~834,~~449~~156.8011		02,535,241.0003		17,~~640~~496,~~119~~986.0655
			% Balance		0.00%		14.3922%		0.1885%		02.0059%		17.5767%
			# Loans		0		717		13		09		829
			% # Loans		0.00%		14.7957%		0.2681%		02.0042%		27.0480%
Page 12 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
REO Report
Loan Number			Original		Stated				Current		State &
														First
&			Principal		Principal		Paid to		Note		LTV at		Original		Payment
Loan Group			Balance		Balance		Date		Rate		Origination		Term		Date
SPACE INTENTIONALLY LEFT BLANK
TOTAL
Page 13 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Foreclosure Report
Loan Number			Original		Stated				Current		State &
														First
&			Principal		Principal		Paid to		Note		LTV at		Original		Payment
Loan Group			Balance		Balance		Date		Rate		Origination		Term		Date
TOTAL
2151877 1
			84,600.00		86,903.53		01-May-2004		8.250%		OH - 90.00%		360		01-Dec-2002
2153415 1			60,350.00		59,187.47		01-Jun-2004		7.000%		OH - 85.00%		180		02-Feb-2003
2546253 1			86,250.00		84,974.61		01-Jun-2004		7.250%		IA - 75.00%		360		01-Jul-2003
3159436 1			200,000.00		198,316.96		01-May-2004		7.000%		MA - 70.18%		360		01-Feb-2004
3263916 1			30,800.00		30,687.74		01-May-2004		12.375%		MI - 70.00%		360		01-Dec-2003
3335536 1			150,000.00		149,013.36		01-Jun-2004		8.250%		MO - 84.99%		360		01-Mar-2004
3338859 1			60,000.00		59,798.04		01-May-2004		10.375%		OH - 44.44%		360		01-May-2004
3427420 1			70,200.00		69,923.29		01-Jun-2004		9.750%		TN - 90.00%		360		01-May-2004
3485540 1			88,000.00		87,478.97		01-Jun-2004		7.625%		CA - 58.67%		360		01-May-2004
3526624 1			50,000.00		48,961.36		01-Jun-2004		9.500%		IA - 83.33%		180		01-May-2004
3591999 1			211,200.00		209,980.21		01-May-2004		7.750%		TX - 84.48%		360		01-May-2004
3600186 1			105,000.00		104,639.30		01-May-2004		9.625%		FL - 72.41%		360		01-Jun-2004
3707833 1			248,000.00		246,442.77		01-May-2004		6.625%		FL - 80.00%		360		01-Jun-2004
3708421 1			164,300.00		163,830.77		01-May-2004		10.500%		FL - 66.79%		360		01-Jun-2004
3754465 1			116,250.00		115,774.14		01-Jun-2004		8.000%		GA - 75.00%		360		01-Jul-2004
3765773 1			30,000.00		29,882.66		01-May-2004		9.000%		MI - 75.00%		360		01-Jun-2004
3772351 1			54,000.00		53,804.61		01-Jun-2004		9.375%		KS - 74.48%		360		01-Jun-2004
3886051 1			233,750.00		0.00		01-Dec-2004		6.625%		MA - 85.00%		360		01-Apr-2004
3714101 2			46,125.00		46,006.40		01-Jun-2004		10.250%		OK - 75.00%		360		01-Jul-2004
TOTAL			2,088,825.00		1,845,606.19
Page 14 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Prepayment Report
VOLUNTARY PREPAYMENTS
											Group 2		Group 1		Total
Current
Number of Paid in Full Loans										57		4151		4658
Number of Repurchased Loans										0		02		02
Total Number of Loans Prepaid in Full										57		4153		4660
Curtailments Amount										31,~~854~~733.0238		138,~~725~~265.5416		179,~~579~~998.5654
Paid in Full Balance										12,~~165~~435,~~921~~445.8162		69,~~931~~034,~~196~~897.5517		811,~~097~~470,~~118~~342.3679
Repurchased Loans Balance										0.00		0422,933.0033		0422,933.0033
Total Prepayment Amount										12,~~169~~437,~~775~~179.8300		69,~~944~~466,~~922~~095.0966		811,~~114~~903,~~697~~274.9266
Cumulative
Number of Paid in Full Loans										2343		91224		~~114~~267
Number of Repurchased Loans										0		47		47
Total Number of Loans Prepaid in Full										2343		95231		~~118~~274
Paid in Full Balance										714,~~853~~229,~~410~~941.9215		1640,~~322~~439,~~580~~909.4685		2454,~~175~~669,~~991~~851.3800
Repurchased Loans Balance										0.00		~~488~~1,~~788~~094,644.8305		~~488~~1,~~788~~094,644.8305
Curtailments Amount										822,~~274~~246.6532		4673,~~880~~332.3387		5595,~~154~~579.9819
Total Prepayment Amount										714,~~861~~252,~~685~~187.5747		1641,~~858~~607,~~249~~886.6277		2455,~~719~~860,~~935~~074.1924
Page 15 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
VOLUNTARY PREPAYMENTS RATES
											Group 2		Group 1		Total
SMM										12.1143%		23.1312%		12.8895%
3 Months Avg SMM										2.3909%		12.7065%		12.8751%
12 Months Avg SMM										2.3924%		12.7018%		12.8719%
Avg SMM Since Cut-off										2.3924%		12.7018%		12.8719%
CPR										1225.5258%		2231.7260%		2030.3415%
3 Months Avg CPR										2522.1836%		1827.5658%		~~20.~~26.32%
12 Months Avg CPR										2523.1878%		1823.5620%		2023.2635%
Avg CPR Since Cut-off										2523.1878%		1823.5620%		2023.2635%
PSA										1,~~229~~582.2710%		21,~~056~~860.7165%		1,~~876~~796.9677%
3 Months Avg PSA Approximation										31,~~067~~579.4532%		21,~~044~~838.6714%		21,~~284~~779.9505%
12 Months Avg PSA Approximation										32,~~067~~126.4577%		21,~~044~~926.6798%		21,~~284~~973.9567%
Avg PSA Since Cut-off Approximation										32,~~067~~126.4577%		21,~~044~~926.6798%		21,~~284~~973.9567%
Page 16 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
PREPAYMENT CALCULATION METHODOLOGY
	Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases + Liquidations )/(Beg Principal Balance - Sched Principal)
	Conditional Prepayment Rate (CPR): 1-((1-SMM)^12)
	PSA Standard Prepayment Model: CPR/(0.002*min(30,WAS))
	Average SMM over period between nth month and mth month (AvgSMMn,m): [(1-SMMn)(1-SMMn+1)...*(1-SMMm)]^(1/months in period n,m)
	Average CPR over period between the nth month and mth month (AvgCPRn,m): 1-((1-AvgSMMn,m)^12)
	Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.002*Avg WASn,m))
	Average WASn,m: (min(30,WASn)+min(30,WASn+1)+...+min(30,WASm)/(number of months in the period n,m)
	Weighted Average Seasoning (WAS)
	Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments, liquidations, and repurchases.
	Dates correspond to distribution dates.
Page 17 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Prepayment Detail Report
Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First
&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment
Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date
2054200 1			140,000.00		139,061.73			14-Sep-2004		10.875%		NY - 38.36%		Paid Off - 360		01-Apr-2003
3139735 1			293,850.00		290,145.73			03-Dec-2004		5.375%		CA - 90.00%		Paid Off - 360		01/01/2004
2294424 1			52,000.00		51,603.10			19-Aug-2004		9.250%		NY - 78.79%		Paid Off - 360		01-Jul-2003
3149844 1			270,000.00		267,038.54			12-Dec-2004		6.125%		IL - 94.74%		Paid Off - 360		01/01/2004
3139366 1			185,600.00		184,095.72			03-Sep-2004		6.000%		CA - 80.00%		Paid Off - 360		01-Jan-2004
3155554 1			216,000.00		214,233.35			03-Dec-2004		7.650%		MO - 90.00%		Paid Off - 360		01/01/2004
3154917 1			89,200.00		88,393.64			14-Sep-2004		7.600%		SC - 87.45%		Paid Off - 360		01-Sep-2003
3156488 1			97,200.00		96,405.44			29-Nov-2004		7.150%		NC - 90.00%		Paid Off - 360		02/01/2004
3155419 2			31,450.00		30,596.96			07-Sep-2004		8.450%		PA - 85.00%		Paid Off - 180		15-Nov-2003
3159477 1			184,000.00		182,708.52			02-Dec-2004		7.375%		RI - 89.76%		Paid Off - 360		03/01/2004
3155647 2			127,720.00		125,938.38			23-Aug-2004		8.650%		WI - 51.09%		Paid Off - 180		01-Nov-2002
3176551 1			231,500.00		228,975.03			01-Dec-2004		6.375%		MD - 77.68%		Paid Off - 360		01/01/2004
3156429 1			295,425.00		293,504.67			08-Sep-2004		7.150%		CA - 75.75%		Paid Off - 360		01-Jan-2004
3251178 1			78,800.00		78,354.78			16-Nov-2004		9.000%		NJ - 44.02%		Paid Off - 360		02/01/2004
3156475 1			186,400.00		184,774.42			07-Sep-2004		6.650%		NC - 80.00%		Paid Off - 360		01-Feb-2004
3303577 1			174,000.00		173,630.00			23-Nov-2004		12.000%		NJ - 64.44%		Paid Off - 360		05/01/2004
3252168 1			292,500.00		291,133.16			26-Aug-2004		8.125%		NJ - 90.00%		Paid Off - 360		01-Feb-2004
3309472 1			115,000.00		114,432.14			08-Dec-2004		9.125%		NJ - 67.65%		Paid Off - 360		03/01/2004
3309401 1			115,500.00		115,068.67			17-Aug-2004		6.375%		CT - 78.04%		Paid Off - 360		01-May-2004
3371192 1			244,000.00		242,430.16			17-Nov-2004		7.500%		MD - 80.00%		Paid Off - 360		04/01/2004
3340272 1			105,000.00		104,782.29			01-Sep-2004		11.250%		NJ - 70.00%		Paid Off - 360		01-Mar-2004
3383169 1			120,000.00		119,177.09			22-Nov-2004		6.875%		NJ - 74.07%		Paid Off - 360		04/01/2004
3365998 1			130,000.00		129,782.43			01-Sep-2004		11.375%		NJ - 65.00%		Paid Off - 360		01-Apr-2004
3383933 1			246,500.00		244,809.67			18-Nov-2004		6.875%		CA - 85.00%		Paid Off - 360		04/01/2004
3409025 1			160,000.00		159,713.33			19-Aug-2004		10.000%		NJ - 58.18%		Paid Off - 360		01-May-2004
3404823 1			110,700.00		110,028.20			23-Nov-2004		7.500%		KY - 90.00%		Paid Off - 360		04/01/2004
3425770 1			323,000.00		322,081.13			09-Sep-2004		8.875%		NY - 85.00%		Paid Off - 360		01-Apr-2004
3414199 1			92,000.00		91,427.79			01-Dec-2004		7.375%		FL - 44.55%		Paid Off - 360		04/01/2004
3450882 1			132,000.00		131,875.68			31-Aug-2004		11.625%		NJ - 60.00%		Paid Off - 360		01-Jun-2004
3414798 1			88,000.00		87,745.22			16-Nov-2004		10.750%		NY - 39.11%		Paid Off - 360		05/01/2004
3455612 1			200,000.00		197,249.15			27-Aug-2004		6.750%		FL - 80.00%		Paid Off - 360		01-Apr-2004
3422272 1			248,400.00		247,000.61			02-Dec-2004		7.875%		CA - 90.00%		Paid Off - 360		04/01/2004
3456394 1			27,020.00		26,968.98			27-Aug-2004		9.750%		KY - 80.00%		Paid Off - 360		01-May-2004
3441971 1			192,000.00		190,876.69			06-Dec-2004		6.990%		CA - 72.73%		Paid Off - 360		05/01/2004
3481056 1			264,000.00		262,764.34			08-Sep-2004		6.375%		CA - 80.00%		Paid Off - 360		01-Apr-2004
3442824 1			171,000.00		169,769.47			01-Dec-2004		6.625%		NM - 90.00%		Paid Off - 360		04/01/2004
3483491 1			154,000.00		153,452.00			10-Sep-2004		6.625%		CA - 83.24%		Paid Off - 360		01-May-2004
3452549 1			311,000.00		309,158.70			19-Nov-2004		7.625%		CA - 84.97%		Paid Off - 360		04/01/2004
3485917 1			200,000.00		199,385.63			14-Sep-2004		7.375%		CA - 53.33%		Paid Off - 360		01-May-2004
3459508 1			292,000.00		292,000.00			01-Dec-2004		5.750%		CA - 80.00%		Paid Off - 360		04/01/2004
3497005 1			330,000.00		329,314.20			15-Sep-2004		7.875%		CA - 77.65%		Paid Off - 360		01-Jun-2004
3460482 2			376,000.00		373,581.59			18-Nov-2004		6.500%		NJ - 80.00%		Paid Off - 360		05/01/2004
3500177 1			244,500.00		243,671.27			18-Aug-2004		6.875%		MA - 77.62%		Paid Off - 360		01-May-2004
3461996 1			257,400.00		255,884.29			17-Nov-2004		7.750%		DC - 90.00%		Paid Off - 360		04/01/2004
3506509 2			265,500.00		264,693.81			18-Aug-2004		8.250%		NJ - 90.00%		Paid Off - 360		01-May-2004
3467393 1			83,600.00		83,062.27			17-Nov-2004		6.500%		CA - 80.00%		Paid Off - 360		05/01/2004
3513131 1			280,000.00		278,876.66			01-Sep-2004		6.000%		NJ - 80.00%		Paid Off - 360		01-May-2004
3483101 1			220,000.00		218,272.69			24-Nov-2004		7.000%		AZ - 68.75%		Paid Off - 360		04/01/2004
3517406 1			165,500.00		164,519.65			10-Sep-2004		6.250%		CA - 89.95%		Paid Off - 360		01-Mar-2004
3484933 1			193,000.00		192,075.14			17-Nov-2004		8.000%		NJ - 89.77%		Paid Off - 360		05/01/2004
3517782 1			204,000.00		203,122.74			24-Aug-2004		5.750%		SC - 80.00%		Paid Off - 360		01-May-2004
3490202 2			78,000.00		77,670.58			17-Nov-2004		8.625%		NJ - 31.84%		Paid Off - 360		05/01/2004
3544893 1			133,000.00		132,393.97			13-Sep-2004		8.250%		MI - 95.00%		Paid Off - 360		01-Feb-2004
3491508 2			437,500.00		434,405.16			19-Nov-2004		6.000%		CA - 70.00%		Paid Off - 360		05/01/2004
3567781 1			125,000.00		124,726.87			25-Aug-2004		7.625%		FL - 32.05%		Paid Off - 360		01-Jun-2004
3498404 1			60,000.00		59,382.30			01-Dec-2004		6.625%		MI - 42.86%		Paid Off - 360		05/01/2004
3575164 1			207,100.00		207,100.00			10-Sep-2004		6.875%		AZ - 95.00%		Paid Off - 360		01-May-2004
3503927 1			190,000.00		188,727.60			02-Dec-2004		7.000%		IL - 95.00%		Paid Off - 360		04/01/2004
3580123 1			258,000.00		257,207.46			14-Sep-2004		7.375%		CA - 69.73%		Paid Off - 360		01-May-2004
3504663 2			399,000.00		396,349.42			06-Dec-2004		5.500%		CA - 60.00%		Paid Off - 360		06/01/2004
3584352 1			109,000.00		108,894.48			31-Aug-2004		11.500%		NJ - 68.13%		Paid Off - 360		01-Jun-2004
3508907 2			306,000.00		304,438.87			03-Dec-2004		8.375%		NJ - 90.00%		Paid Off - 360		04/01/2004
3595181 1			138,250.00		138,083.73			01-Sep-2004		10.500%		NV - 64.30%		Paid Off - 360		01-Jun-2004
3511447 2			341,000.00		341,000.00			02-Dec-2004		6.375%		CA - 94.99%		Paid Off - 360		05/01/2004
3606985 1			54,500.00		54,354.63			01-Sep-2004		7.375%		MS - 79.56%		Paid Off - 360		01-Jun-2004
3511635 1			155,000.00		153,772.99			03-Dec-2004		6.375%		CA - 62.00%		Paid Off - 360		05/01/2004
3621353 1			113,160.00		112,977.75			24-Aug-2004		10.500%		VA - 69.00%		Paid Off - 360		01-May-2004
3518432 1			240,000.00		239,693.57			23-Nov-2004		5.125%		FL - 80.00%		Paid Off - 360		05/01/2004
3627817 1			152,000.00		151,699.68			24-Aug-2004		8.125%		FL - 95.00%		Paid Off - 360		01-Jun-2004
3521017 1			131,250.00		130,209.74			07-Dec-2004		6.750%		CA - 75.00%		Paid Off - 360		03/01/2004
3636524 1			152,000.00		149,901.83			30-Aug-2004		4.875%		VA - 80.00%		Paid Off - 360		01-Oct-2003
3529439 1			280,000.00		277,874.93			02-Dec-2004		5.625%		CA - 80.00%		Paid Off - 360		05/01/2004
3642791 1			118,628.00		117,415.30			20-Aug-2004		9.500%		FL - 83.54%		Paid Off - 180		01-May-2004
3532053 1			256,000.00		254,430.85			08-Dec-2004		6.750%		GA - 80.00%		Paid Off - 360		05/01/2004
Page 18 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First
&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment
Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date
3654309 1			40,000.00		39,891.56			14-Sep-2004		8.000%		MI - 60.61%		Paid Off - 360		01-May-2004
3537609 1			168,000.00		167,088.51			16-Nov-2004		7.375%		NJ - 80.00%		Paid Off - 360		05/01/2004
3674299 2			360,000.00		360,000.00			26-Aug-2004		7.250%		CA - 80.00%		Paid Off - 360		01-Jun-2004
3550072 1			188,000.00		186,941.24			06-Dec-2004		6.375%		CA - 80.00%		Paid Off - 360		06/01/2004
3687948 1			177,000.00		176,593.44			18-Aug-2004		7.375%		VA - 78.67%		Paid Off - 360		01-Jun-2004
3559988 1			155,000.00		154,481.31			01-Dec-2004		9.750%		MA - 63.79%		Paid Off - 360		05/01/2004
3693261 1			287,000.00		286,572.67			19-Aug-2004		7.500%		CA - 70.00%		Paid Off - 360		01-Jul-2004
3568132 2			508,000.00		508,000.00			24-Nov-2004		5.000%		CA - 80.00%		Paid Off - 360		05/01/2004
3696213 1			88,000.00		87,943.47			24-Aug-2004		11.500%		CT - 51.76%		Paid Off - 360		01-Jul-2004
3593136 1			256,000.00		254,101.92			22-Nov-2004		5.750%		CA - 89.82%		Paid Off - 360		05/01/2004
3717239 1			232,000.00		231,493.06			01-Sep-2004		7.625%		MD - 80.00%		Paid Off - 360		01-Jun-2004
3606704 1			283,000.00		281,552.86			01-Dec-2004		6.875%		VA - 79.94%		Paid Off - 360		06/01/2004
3719609 1			71,200.00		71,036.47			20-Aug-2004		7.375%		MO - 80.00%		Paid Off - 360		01-Jun-2004
3617434 1			124,800.00		124,147.75			17-Nov-2004		8.250%		MI - 80.00%		Paid Off - 360		04/01/2004
3755217 1			228,000.00		227,715.59			15-Sep-2004		8.375%		CA - 70.15%		Paid Off - 360		01-Jul-2004
3622512 1			116,000.00		115,406.82			23-Nov-2004		6.875%		FL - 80.00%		Paid Off - 360		06/01/2004
3772056 2			385,000.00		384,692.66			07-Sep-2004		10.500%		NY - 57.04%		Paid Off - 360		01-Jul-2004
3626168 1			100,000.00		99,463.28			23-Nov-2004		6.625%		IL - 55.56%		Paid Off - 360		06/01/2004
TOTAL			8,129,153.00		8,097,118.36
3627655 1			296,100.00		293,810.96			03-Dec-2004		6.250%		CA - 90.00%		Paid Off - 360		04/01/2004
3631659 1			150,000.00		149,108.09			02-Dec-2004		8.250%		FL - 46.58%		Paid Off - 360		05/01/2004
3636709 1			105,000.00		104,463.06			22-Nov-2004		6.875%		NJ - 47.51%		Paid Off - 360		06/01/2004
3649205 1			229,500.00		226,749.33			07-Dec-2004		3.875%		IL - 85.00%		Paid Off - 360		04/01/2004
3655454 1			78,600.00		78,387.64			01-Dec-2004		9.125%		NJ - 47.93%		Paid Off - 360		07/01/2004
3671429 1			182,000.00		181,440.88			03-Dec-2004		8.500%		DC - 65.00%		Paid Off - 360		07/01/2004
3672823 1			130,000.00		129,285.25			23-Nov-2004		6.500%		FL - 79.75%		Paid Off - 360		06/01/2004
3674591 1			207,200.00		206,004.91			02-Dec-2004		6.250%		CA - 79.72%		Paid Off - 360		06/01/2004
3684761 1			99,000.00		98,190.59			07-Dec-2004		6.250%		MD - 90.00%		Paid Off - 360		05/01/2004
3726216 1			183,000.00		182,472.68			29-Nov-2004		10.750%		NY - 58.10%		Paid Off - 360		06/01/2004
3772020 1			142,400.00		142,395.14			18-Nov-2004		6.750%		CA - 80.00%		Paid Off - 360		06/01/2004
3804354 1			56,000.00		55,671.45			19-Nov-2004		8.375%		WA - 54.90%		Paid Off - 360		07/01/2004
3779891 1			191,920.00		190,865.45			24-Nov-2004		8.000%		CA - 80.00%		Repur/Subs - 360		04/01/2004
3886051 1		FCL	233,750.00		232,067.88			10-Dec-2004		6.625%		MA - 85.00%		Repur/Subs - 360		04/01/2004
TOTAL			11,962,970.00		11,893,276.12
Page 19 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Realized Loss Report
COLLATERAL REALIZED LOSSES
											Group 2		Group 1		Total
Current
Number of Loans Liquidated										0		0		0
Collateral Principal Realized Loss/(Gain) Amount										0.00		0.00		0.00
Collateral Interest Realized Loss/(Gain) Amount										0.00		0.00		0.00
Net Liquidation Proceeds										0.00		0.00		0.00
Cumulative
Number of Loans Liquidated										0		0		0
Collateral Realized Loss/(Gain) Amount										0.00		0.00		0.00
Net Liquidation Proceeds										0.00		0.00		0.00
		Class M-7 Writedown Amount														0.00
		Class M-6 Writedown Amount														0.00
		Class M-5 Writedown Amount														0.00
		Class M-4 Writedown Amount														0.00
		Class M-3 Writedown Amount														0.00
		Class M-2 Writedown Amount														0.00
		Class M-1 Writedown Amount														0.00
Page 20 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
DEFAULT SPEEDS
											Group 2		Group 1		Total
MDR										0.00%		0.00%		0.00%
3 Months Avg MDR										0.00%		0.00%		0.00%
12 Months Avg MDR										0.00%		0.00%		0.00%
Avg MDR Since Cut-off										0.00%		0.00%		0.00%
CDR										0.00%		0.00%		0.00%
3 Months Avg CDR										0.00%		0.00%		0.00%
12 Months Avg CDR										0.00%		0.00%		0.00%
Avg CDR Since Cut-off										0.00%		0.00%		0.00%
SDA										0.00%		0.00%		0.00%
3 Months Avg SDA Approximation										0.00%		0.00%		0.00%
12 Months Avg SDA Approximation										0.00%		0.00%		0.00%
Avg SDA Since Cut-off Approximation										0.00%		0.00%		0.00%
Loss Severity Approximation for Current Period										0.00%		0.00%		0.00%
3 Months Avg Loss Severity Approximation										0.00%		0.00%		0.00%
12 Months Avg Loss Severity Approximation										0.00%		0.00%		0.00%
Avg Loss Severity Approximation Since Cut-off										0.00%		0.00%		0.00%
Page 21 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY
	Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)
	Conditional Default Rate (CDR): 1-((1-MDR)^12)
	SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)0.02,MAX(0.03,MIN(30,WAS)0.02-0.0095*(WAS-60)))
	Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn)(1-MDRn+1)...*(1-MDRm)]^(1/months in period n,m)
	Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)
	Average SDA Approximation over period between the nth month and mth month:
	AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)0.02,MAX(0.03,MIN(30,Avg WASn,m)0.02-0.0095*(Avg WASn,m-60)))
	Average WASn,m: (WASn + WASn+1 +...+ WASm )/(number of months in the period n,m)
	Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)
	Average Loss Severity Approximation over period between nth month and mth month: Avg(Loss Severityn,m)
	Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.
	Dates correspond to distribution dates.
Page 22 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Realized Loss Detail Report
Loan Number			~~Original~~Current		~~Prior~~State &				~~Current~~Prior		~~State &~~Realized				Cumulative
														First
&		Loan	Note		LTV at		Original		Principal		Loss/(Gain)		Realized		Realized
&			Principal		Principal		Realized		Note		LTV at		Original		Payment
Loan Group		Status	Rate		Origination		Term		Balance		Revision		Loss/(Gain)		Loss/(Gain)
Loan Group			Balance		Balance		Loss/(Gain)		Rate		Origination		Term		Date
SPACE INTENTIONALLY LEFT BLANK
TOTAL
Page 23 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Triggers and Adj. Cert. Report
TRIGGER EVENTS
										Group 2		Group 1		Total
Stepdown Date has occurred (0 = No, 1=Yes)														0
Does a Trigger Event Exist-Either a) or b) Yes?														0
a) Does a Delinquency Trigger Event Exists (0=No,1=Yes)														0
b) Does a Loss Trigger Event Exists (0=No,1=Yes)														0
60+ days Delinqueny Bal.-3M Rolling Avg.														~~950~~9,~~672~~611,013.0752
Ending Collateral Balance														~~424~~392,~~265~~136,~~672~~771.7159
Delinquency Percentage														02.~~2200~~4500%
Beginning Balance of Mezzanine and C Class														92,250,287.73
Beginning Collateral Balance														~~432~~404,~~721~~363,~~209~~634.7653
Credit Enhancement Percentage														2122.~~3200~~8100%
Cumulative Loss Percentage														0.0000%
ADJUSTABLE RATE CERTIFICATE INFORMATION
SPACE INTENTIONALLY LEFT BLANK
ADDITIONAL INFORMATION
										Group 2		Group 1		Total
Cap Contract Payments - Due														0.00
Cap Contract Payments - Paid														0.00
Page 24 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Additional Certificate Report
ADDITIONAL CERTIFICATE REPORT
													NET WAC Shortfall CarryOver		NET WAC Shortfall Paid
CLASS
			A-1										$0.00		$0.00
			A-2										$0.00		$0.00
			A-3										$0.00		$0.00
			M-1										$0.00		$0.00
			M-2										$0.00		$0.00
			M-3										$0.00		$0.00
			M-4										$0.00		$0.00
			M-5										$0.00		$0.00
			M-6										$0.00		$0.00
			M-7										$0.00		$0.00
Page 25 of 26
IndyMac SPMD 2004-A
Collateralized Asset-Backed Bonds
REMIC 2004-A
2004-A
September 27, 2004 Distribution
December 27, 2004 Distribution
Other Related Information
ADDITIONAL INFORMATION
										Group 2		Group 1		Total
Sched. Payments for 60+Day Delinquent Loans										123,~~266~~955.7437		1870,~~388~~954.9729		1994,~~655~~909.7166
Sched. Pmts - 60+Day Delinquent Loans, 1 Month Prior										021,655.0024		151,~~471~~725.8945		173,~~471~~380.8969
Sched. Pmts - 60+Day Delinquent Loans, 2 Month Prior										06,569.0071		039,653.0038		046,223.0009
Sched. Pmts - 60+Day Delinquent Loans, 3 Month Prior										01,266.0074		018,388.0097		019,655.0071
Sched. Pmts - 60+Day Delinquent Loans, 4 Month Prior										0.00		01,471.0089		01,471.0089
Sched. Pmts - 60+Day Delinquent Loans, 5 Month Prior										0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 6 Month Prior										0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 7 Month Prior										0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 8 Month Prior										0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 9 Month Prior										0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 10 Month Prior										0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 11 Month Prior										0.00		0.00		0.00
Current Scheduled Payments										~~702~~666,~~393~~675.3584		2,~~228~~068,~~835~~491.0473		2,~~931~~735,~~228~~167.3957
Current Scheduled Payments 1 Month Prior										~~714~~675,~~943~~125.1537		2,~~267~~125,~~171~~669.6406		2,~~982~~800,~~114~~794.7842
Current Scheduled Payments 2 Month Prior										~~742~~691,~~195~~863.7574		2,~~297~~175,~~432~~941.5356		32,~~039~~867,~~628~~805.2830
Current Scheduled Payments 3 Month Prior										0702,393.0035		02,228,835.0004		02,931,228.0039
Current Scheduled Payments 4 Month Prior										0714,943.0015		02,267,171.0064		02,982,114.0078
Current Scheduled Payments 5 Month Prior										0742,195.0075		02,297,432.0053		03,039,628.0028
Current Scheduled Payments 6 Month Prior										0.00		0.00		0.00
Current Scheduled Payments 7 Month Prior										0.00		0.00		0.00
Current Scheduled Payments 8 Month Prior										0.00		0.00		0.00
Current Scheduled Payments 9 Month Prior										0.00		0.00		0.00
Current Scheduled Payments 10 Month Prior										0.00		0.00		0.00
Current Scheduled Payments 11 Month Prior										0.00		0.00		0.00
Page 26 of 26

Filing Compare · IndyMac ABS Inc. Home Equity Mortgage Loan Asset-Backed Trust, Series SPMD 2004-A